Browsing University of Missouri-Columbia by Thesis Department "Biological sciences (MU)"
Now showing items 21-40 of 232
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The blue light responses and lifetime fitness of a hyper-phototropic mutant in Arabidopsis thaliana and Zea mays
(University of Missouri--Columbia, 2020)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Optimal plant growth and development hinges on the plant's ability to absorb sunlight. Because plants are sessile, they have evolved a variety of ... -
Blue light- and ubiquitin-dependent influence on phototropin 1 abundance and movement at the plasma membrane
(University of Missouri--Columbia, 2016)Phototropism is the ability of a plant to bend in response to directional light. he shoot of a plant exhibits a positive response bending toward the light to optimize solar collection. The roots exhibit a negative response ... -
Brassicales to Brassica : integrating phylogenomics and population genomics
(University of Missouri--Columbia, 2020)The Brassicales are an economically important order of flowering plants. Many crop species such as kale, broccoli, cabbage, cauliflower, canola oil, capers, and papaya, as well as the model plant organism, Arabidopsis ... -
Building better wetlands for amphibians : investigating the roles of engineered wetland features and mosquitofish (Gambusia affinis) on amphibian abundance and reproductive success
(University of Missouri--Columbia, 2011)Compensatory wetland mitigation efforts have been broadly criticized for failing to replace lost ecological functions, even with net gains in wetland area. Of particular concern is the suitability of constructed wetlands ... -
C4 photosynthetic evolution : sub-types, diversity, and function within the grass tribe Paniceae
(University of Missouri--Columbia, 2017)Most plants convert sunlight into chemical energy using a process known as C[subscript 3] photosynthesis. However, some of the world's most successful plants instead use the C[subscript 4] photosynthetic pathway which ... -
Call synchrony and the evolutionary origins of leader preference in Neoconocephalus ensiger katydids /
(University of Missouri--Columbia, 2016)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Many species of acoustically communicating insects and anurans display a female preference for males producing their calls just ahead of those of their ... -
Call timing interactions, aggressive behavior, and the role of acoustic cues in chorus formation in treefrogs
(University of Missouri--Columbia, 2008)I studied calling patterns and aggressive behavior of the Bird voiced treefrog, , to assess how dynamic call characters influences males and the factors influencing the onset of choruses and settling patterns of males in ... -
Cause specific mortality and anti-predator behavior in midwestern songbirds
(University of Missouri--Columbia, 2011)Predation is a ubiquitous selective pressure that profoundly influences animals on evolutionary and ecological time-scales, but we lack estimates of predator-specific mortality rates for many taxa. We investigated ... -
Cellular behaviors regulating tangential migration of facial branchiomotor neurons in the zebrafish embryo
(University of Missouri--Columbia, 2009)Development of the nervous system is characterized by intricate processes like neuronal migration, axon outgrowth and guidance and synaptic connections to their targets. These processes involve navigation of the migrating ... -
Celsr1 suppresses WNT5A-mediated chemoattraction to prevent incorrect rostral migration of facial branchiomotor neurons
(University of Missouri--Columbia, 2022)As the nervous system develops, neurons often migrate from where they originate to their functional locations prior to them contributing to the circuits that drive cognitive and motor function. Within the vertebrate ... -
Centromere function and evolution in maize (Zea mays)
(University of Missouri--Columbia, 2006)A dispensable supernumerary chromosome present in maize, the B chromosome, was the focus of many centromere studies. First, I examine the variation in copy number of centromeric elements and other repeats among different ... -
Changes in properties of lamprey reticulospinal neurons following spinal cord injury
(University of Missouri--Columbia, 2015)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The lamprey is one of the most ancient vertebrates, sharing many of basic characteristics of the brain and spinal cord with higher, more evolved ... -
Characterization of an in vitro neural stem cell niche with educational component : stem cells and society
(University of Missouri--Columbia, 2008)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] We describe a novel neural stem cell (NSC) culture system, derived from embryonic stem (ES) cells, that maintains and expands a population of neural ... -
Characterization of pigment-protein complexes in the cyanobacterium Anacystis Nidulans R2
(University of Missouri--Columbia, 1987)Intrinsic membrane proteins associated with photosynthetic electron transfer have highly-conserved analogs in both cyanobacteria and chloroplasts. However, the protein complexes required for light-harvesting are quite ... -
Characterization of the relationship between radiographic grading and biomarkers in patients with knee osteoarthritis
(University of Missouri--Columbia, 2020)"Osteoarthritis (OA) is a whole-joint degenerative disease, affecting more than 25% of the adult population. Currently, OA is most commonly diagnosed based on radiographic documentation. However, radiographic grading is ... -
The characterization of the tetratricopeptide repeat protein 13 in mammals
(University of Missouri--Columbia, 2012)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Tetratricopeptide repeat domain protein 13 (TTC13) is a member of a large family of proteins known as tetratricopeptide repeat (TPR) proteins that has ... -
Characterizing a model of early human placenta
(University of Missouri--Columbia, 2020)In the few weeks following fertilization of a human ovum, there is little known about the events of early human development. What we do know we've learned from a few collections of fixed sections of implantation sites ... -
Characterizing territoriality and the mechanisms that mediate it in female Anolis gundlachi lizards
(University of Missouri--Columbia, 2019)Territoriality is a suite of behaviors through which animals secure access to particular areas or resources. It is prevalent across animal groups and has the potential to exert substantial influence on fitness by mediating ... -
Chromatin-level regulation of the maize purple plant1 gene
(University of Missouri--Columbia, 2008)In eukaryotes, gene expression is controlled at the chromatin level by mechanisms that are not yet well understood. This study addressed some of the unanswered questions about chromatin-level gene regulation. In maize, the ... -
Collective offspring-parent signaling in a social treehopper : mechanisms, patterns and function
(University of Missouri--Columbia, 2010)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] I investigated the properties of collective behavior in a group-living insect, including the patterns of group behavior, the function of group level ...